Pulverizer.



J. HYDE, yDBU'D; O. HYDE, ADMINISTRATRIX. f V'PULVFRIZL l APPLICATION FILED 0.01224, 1912.. 1,1 18,-7y 5, f Patented Nov. 24,1914.

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J. HYDE, DEG'D.

O. HYDE, ADMINISTRATRIX.

PULVERIZER.

4APPLICATION FILED 0012.24, 19124 A Patented N0v.24 1914 3 SHEETS-SHUT 2.

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INVENTon llm. Quid.

J.y HYDE,V UBCD. -o. HYDE, ADMINISTHATRIX.

PULVERIZER.

APPLIGATIONMMD 00T.24,1912.

Patented Nov. 24, 1914.

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'rE STATES@ l ENT oFFicf John HYDE, or Knoxvrntn, PENNSYLVANIA; eATnsniNn HYDE ADMINISTRATBIX or ssrn JOHN HYDE, nncmsnn PULvnnIznn.

1,11a'rz5.vv 1

- Specication of Letters Patent.

Patented ov. 24, 1914:.`

Application led Getober 24,1912. Serial No. 727,573. A

To all whom t may concern:

' Be it known thatI, JOHN HYDE, a residentof Knoxville, in the county of Alle- Igheny and State of Pennsylvania, have part of this specification, in whichw A e 1 is an end view of one form of my lmproved pulverizer 1n which I have shown a portion of a furnace to which pulverized fuel is fed from the pulverizer. Il

Figur the*- fan to the furnace. v Fig. 3 'is a side elevation of the pulverizer. Fig. 4 isa vertical longitudinal sectional view through the pulverizer. Fig. 5 is'` a 'sectional `view on the line V--V of Fi l. Fig. 6 is a sectional view on the line '--VI of Fig. .4; andF ig. 7 is a. detail sectional view on the line-VII- VII of Fig. 4C.y

This invention relates to `pulverizers and is designed to provide a cheap and efficient 'Sdevice ofthis character to continuously pnl.

verize material which is drawn from one end thereof and deliver to the point where it is to be used or stored by a current of air passing through the pulverizer.

The device is particularly adapted' for feeding pulverized fuel to a furnace, although it can readily be used for pulverizingores, stone or any coarse material which is to be reduced to a powder.

The precise nature of my invention will be best understood by reference to the accompanying drawings which will now be described, it` being premised, however, that various changes maybe made in the details of construction and general arrangement of the parts,l without departing from the spirit and scope of my invention, as defined in the appended claims. Y

Referring to the accompanying drawings, the numeral 2 designates the frame work or' support for the pulverizing drum 3, which is rotatably mounted on rollers 4 connected to shafts 5 journal'ed in the frame 2. The

drum 3 comprises a tubular shell of sheet metal, and mounted on the outer periphery of the shell are aned collars 6, to which are secured heads Formed integrally with one of the collars 6 is a circular rack ig.` 2 is a plan view of the -nozzle leading from 8 which is in mesh with a pinion 9 on ashaft 10, which is also journaled in the 'frame 2.

The interior of the pulverizer is divided into a plurality. ot' compartmentsll, 12, 13 and 14: by means of partitionsl, 16 and 17.; the compartments gradually decreasing in width froml the inlet end to the outlet end o'f the pulverizer. The central'portions of the-1 partitions are provided with openings 18,.y i

and adjustably mounted on rods 19 secureflgn to lvarious partition plates are balles 20, the

diameters of which are `greater thanfthe openings 18.A These baffles are vspaced it slight distance from the partitions for the purpose hereinafter described.

21k designates the casing of a feeding device which is supported on a bracket 22 ex` tending rpwardly from the base ofthe' frame 2. Journaled in bearings in the ends oi the casing 21 is a shaft 23 which isprovided with a s nral feeding device 24 withinl the casing an a driving 1111837 25 on th outer end oi the shaft. A p

26 designates a hOPPei for receiving material to`be pulverized which is connected to the easing 21. The end of thez'caslng 21' '80 which Vis of cylindrical form extends through an opening 27 in one of the` heads 7, there being an open space between the Walls of ysaid opening and the outer wall of the casing 2`fo'r permitting air to pass into the pulverizer between said casing and the walls of the opening.

28 designates a valve mounted on the casing 2l and arranged to increase or decrease the 'size of the inlet ports leading to the opening 27.

Mounted on the top of theframe `2 is a fan casing 29, and rotatably journaled in V said fan casing, 'and a-bracket 30 on the other end of the frame, is a shaft 31.

32 designates a rotary fan within the easing 29 connected to the shaft 31 and 33 is a pulley on the opposite end of said shaft.

34: is a pipe extending through a central opening in the head 7 at the outer end of the pulverlzer and is also connected to the fan casing 29. Extending from the outlet end of the fan casing 29 isa nozzle .35 which leads to a furnace 36, or other suitable point, to vhich the pulverized material Yis de1ivere In the preferred embodiment of my inleo les

ventien, as slniwn4 drawings, lhave shown the various cfnnpartmentsA built u of the partitions v"l5, l@ and 17, and; s hel s 37, 38, 39 and e0. vConnected to the inner `face of the shellof'the drum 3 is a'spline'tl.

Each of the shells 37, 38, 39 anda() are provided with a groove for the receptionrof spline tl, as shown in Fig. 6. 'lhe shells 3 7 to di), together with the partition plates l5 `infill' are' inserted'into theldr'um and the f heads l are then secured to the' anges on' the' ment /durin 'ring 6.. 'lhese shells are preferably formed ot malleable castings, so that they will with- "-'fstand the pounding edect of the balls l2- i5 within the compartments. The shell 40 of the last or smallest compartment, is provided with plurality of ribs 4:3 which are de. signed to raise the balls in that compartthe rotation of the drum, so that they will tall on the material in the last compartment to completely pulverize any material which has been drawn therein, aS hereinafter described;

' l prefer to place larger balls in the com partment ll'than in the remaining c ompart.- ments and if desired, l can gradually decrease'the size of the balls in the compartments toward the outlet end of the pul- 'verizen Mounted on the frame 2 is a motor di having a pulley on the end thereof which is vconnected by means of a belt with a pulley on the shaft l0, for rotating the drum l3 through the medium of the gearing.

l@ .is a belt connecting a pulley on the` shaft l0 with, the pulley 25 of the feeding' device and 4:7 isa belt connecting another l pulley on "the shaft 10 with the pulley 33 on i the fan shaft 3l.

The operation of the device is as follows:

After the motor has been started to/rotate wi the compar ments, saidmaterial will "time there is not" suiiicient air ypassing be edilced to a powder before assing from the llast compartment. rlhe ba e 20 can be moved'toward or'liirom the division lates in ordei` to gage theJ size of the materia passing from one com a/rtment to the next compare menti The n mber and. size of these com- 'pertinents can be varied toreet the requiretnentsl` for 'crushing various materials, and c 'jquanttty of material-pin a given period of through the feeding device, additional-air is device and the walls of admittedy between the casing oi the feeding the-@peine 2,7 e

adjusting the lvalve 28.

The advantages or' my drum having a plurality of partitions therein, the partitions having openings with bellies arranged adjacent thereto.

il further advantage results from the provision of means for continuously' feeding the material to'be pulveri'zedinto one end or the drum, together with means for exhausting the pulverized material from the other end and delivering it to a predetermined point. 'f

l claim: l. A pulverizer having a rotatable drum, a Jlfeeddevice extending into one end of the drum concentric therewith, an outlet' pipe extending through the other end of the drum and concentric therewith, a plurality of division plates Within said drum which divide the drum into a plurality of compartments, there being a central opening througheach of said division plates, said openings forming the only communication between the compartments, a baiileco'nnected to each partition in front of the opening through said"partition and arrangedV to prevent pulverized material from passing in a direct line through the openings in .two partitions, means for rotat ingl said drum, means for pulverizing the material in each compartment l,when the 'drum is rotated, there being an opening for the admission of air surrounding the feeding device, and an exhaust fan connected to the 1 invention result, from the'provision of" a rotary pulverizing arranged to register" `with the air inlets communicating with the space surrounding the feeding device, and 'an exhaust fan having a cnnection extending into the opening pulverizer, y/fsubinular opening in one end of the drum, said drum being arrangedy to rotate aboiit said exhaust pipe, a feeding device exte'pding through the annular opening in the other In testimony whereof, I have hereunto set end of the drum, there being an air sf'. Je' my hand.

surrounding the feeding device, and a slide plate rotatably mounted about the feeding 5 device and arranged to adjust the size of Witnesses:

feed openings communicating with the air JESSE B. HELLER, space, substantially as described. H. M. CoRwIN.

JOHN HYDE. 

